Movement Of Poles Research Articles

Parent, meaning who? Biotechnological revolution in human procreation and succession law in Poland

Recent developments in assisted reproductive technology (ART) – the use of third parties in the process of fertilization and pregnancy, and cryopreservation of human sperm, ova and human embryos – have contested many previously unchallenged paradigms related to parenthood. Currently, the thesis that a person is created by the physical consummation of two living parents of the opposite sex, is no longer as simple and clear cut. Undoubtedly, these changes affect social norms, including the legal systems of individual states which take divergent stances on the above-mentioned issues. For example, in their approach to filiation relations of a child born through ART and how his/her parents’ data are entered on the child’s birth certificate. Intensified migration movements of Poles to the USA and an increased number of cross-border (Polish and American) relationships have resulted in a growing frequency of foreign birth certificates appearing in Poland. Though incompatible with the Polish law, such certificates provide grounds for certain claims to be filed since vital records are documents of particular importance in every legal order, and in succession proceedings they are of fundamental value. Thus, a question arises as to the viewpoint of Polish law in regard to American birth certificates which do not comply with the rules in force in Poland regarding the filiation indicated therein. Can a child inherit by operation of law from people of the same sex indicated in his/her birth certificate issued abroad and can he/she inherit from all the parents named in such a certificate even if there are more than two of them? Does a child conceived several years after the death of his/her father, whose data feature on the American birth certificate, have a right to inherit from him in Poland? This article attempts to answer these questions.

Семиотическая репрезентация Минска в романе В. Мартиновича «Мова»

The article aims to reveal the principles of urban space organisation in Viktor Marti­novich’s novel “Mova”. Due to the fact that the novel is based on a linguistic problem (the author defines the genre of the novel as a “linguistic thriller”), the representation of the city in the novel is subject to linguistic models and principles. The main of these principles is the isomorphism of the part and the whole. The structural generality of the different levels of the novel and the novel space is based on the technique of inversion. There is a movement of value poles within the system of oppositions, at the level of narrative, plot and space (the aggressor — the victim, the East — the West, the centre — the periphery, one’s own — someone else’s). The generally accepted structure of the zones of the centre and the periphery is changing: the periphery is associated with order and norm, and the centre — with the concepts of chaos, disor­ganization, and deviation. The opposition of one’s own and someone else’s (language, space) comes to the fore, which corresponds to the socio-cultural context of Belarusian litera­ture. The centre and the periphery are structured according to different cultural models: the centre is or­ganized according to the dual model, and the periphery according to the ternary one.

Interactions analysis and quadrature voltage compensation control for stabilizing LCC-HVDC system with multiple STATCOMs

Instability may occur in LCC-HVDC system when multiple STATCOMs operate simultaneously at the inverter station. To deeply investigate this problem, firstly a structured linear model of LCC-HVDC system with STATCOMs is presented. Then, a single-input single-output (SISO) form of the model is obtained. Based on the movement of dominant poles (MODPs) of the SISO model, the interactions at the receiving end of the system are investigated. The results reveal that the interactions between LCC and STATCOMs mainly affect the high-frequency (HF) characteristics of the system. With the increase in the number of online STATCOMs, the negative effects of the interactions on the system HF stability gradually increase, while that on low-frequency (LF) stability become weaker. In order to improve such negative interactions, a quadrature voltage compensation control (QVCC) of STATCOM is proposed in this paper. This method introduces the q-axis AC voltage into the constant AC voltage control (CAVC). The theoretical analysis indicates that the QVCC can enhance the stability of the LCC-HVDC system with multiple STATCOMs, which is verified by the simulation results conducted in PSCAD/EMTDC. Finally, the intuitive and physical explanations on the mechanism of instability caused by increasing number of online STATCOMs are given from two perspectives.

Margins of stability and trunk coordination during Nordic walking

Although it has already been demonstrated that Nordic walking has some peculiar biomechanical features with respect to walking, the effects on balance and trunk coordination are still unknown. Our aim here was to compare margins of stability, hip stabilizer muscle activation and scapular-pelvis coordination (mean and variability of continuous relative phase) between walking and two different pole walking techniques (observational design). Eleven Nordic walking instructors were asked to walk at 5.5 km·h−1 on a flat treadmill while 1) walking, 2) Nordic walking and 3) pole walking with just elbow flexion–extension motion allowed and constrained shoulder motion (elbow technique). The 3D movements of limbs and poles were measured by an optoelectronic motion capture system, and gluteus medius activation was measured through surface electromyography. Both techniques using poles show larger mediolateral margins of stability and similar anterior-posterior margins of stability in comparison with walking (p < 0.001). The larger mediolateral margin of stability using poles (conditions 2 and 3) is accompanied by greater trunk coordination stability (greater continuous relative phase variability) than walking. Although the Nordic walking (condition 2) technique results in a similar range of scapular and pelvis transverse rotation, the general pattern of scapular-pelvis coordination was temporally delayed by approximately 20% of the gait cycle in relation to other conditions (1 and 3). In conclusion, Nordic walking provides enhanced mediolateral support and coordination stability of trunk compared with walking, suggesting that it could be proposed as a safer exercise modality than walking.

Impact of Approximate Implementation manner in Klobuchar Model

This paper focuses on the approximations that John A. Klobuchar made in mid 70s in his famous algorithm of ionospheric correction model for single frequency GPS receiver. At that time Klobuchar used a system of fixed geomagnetic north pole coordinates which are not accurate nowadays according to the International Geomagnetic Reference Field and to the World Magnetic Model because the geomagnetic poles move slowly. In addition, Klobuchar had to do other trigonometry simplifications in his implementation to avoid sophisticated computations. In order to evaluate this approximate implementation in a single frequency GPS receiver, ionospheric time and range delay are estimated on the entire day of January 1st 2010, using a different implementation in MATLAB. The required GPS data is obtained from recorded RINEX files at UDMC near DAMASCUS, SYRIA. In this comparative study, we reformulated the standard equations of Klobuchar model and examined the influence of its approximations on the ionospheric range delay and found a non- negligible bias in order of ten centimeters, whereas the influence of the movement of the geomagnetic poles was in order of few centimeters.

Public Resistance in the National Liberation Movement of Poles in Right-Bank Ukraine in the First Half of the 1860s (From the Central State Historical Archive of Ukraine, Kyiv)

The article covers important manifestations and specifics of the protest culture of the Polish community within the South-Western region of the Russian Empire in the first half of the 1860s on the basis of analysis and synthesis of information from the documents of "Office of Kyiv, Podillya and Volyn Governor-General" (f.442) and "Office of the trustee of the Kiev school district" (f.707) of the Central State Historical Archive of Ukraine (Kyiv). Defending one's own cultural identity as a driver of national development is connected with the awareness of the political interests and goals of the liberation struggle of Poles. The unique influence of the Polish question on historical processes, the configuration of international relations in Europe during the "long 19th century" determines the relevance and scientific significance of the study and thinking of the history of Polish national and cultural movement. Comprehensive study of the Polish question in the European history of the 19th century is an important part of the scientific perception of interethnic contradictions and antagonisms in the Russian Empire and the reaction of European diplomacy and public opinion, a deeper understanding of the essence of Russian-Polish cultural and civilizational confrontation and its impact on Ukrainian national life. Following the three partitions of the Polish–Lithuanian Commonwealth (1772, 1793, 1795) most of the territories of this formerly powerful European state were incorporated into the Russian Empire, there was a fierce struggle for cultural and ideological dominance in the region. The Polish national liberation movement of the 1860s, which culminated in the January Uprising of 1863-1864, developed against a background of broad social and cultural resistance to Russian autocracy, manifested in such protest actions as mourning and serving panikhads for dead Poles, singing patriotic Polish songs and hymns, public wearing of national costumes, participation in anti-government manifestations and demonstrations, refusal to read prayers for the emperor in churches, and so on. Clergy and educators, as well as students and pupils, were the driving force behind this protest movement, which had an international resonance

NEMESIS APPROXIMATED TO SUN

Photographs of double Sun lead in paper that it took off with Prohodnaja Griva of Gornyy Altay (near c. Belokurikha). Evidences of approaching second Sun – Nemesis to our Shine. Influence of Nemesis on the cosmic events in Sun system are very impression that its testify about interaction of two stars and influence second Sun on the planets of Sun system. Powerful emissions of plasma in view concentration rays with side of our Sun and separation blue spectrums clots with Nemesis that it point on the essential helium component. Myself Nemesis can to be carry to class B – white-blue giants. Anomaly movements of magnet poles of Earth call by impact of Nemesis and can be result to reserve polarity on the Earth.

Analysis of Ocean Bottom Pressure Anomalies and Seismic Activities in the MedRidge Zone

The Mediterranean Ridge accretionary complex (MAC) is a product of the convergence of Africa–Europe–Aegean plates. As a result, the region exhibits a continuous mass change (horizontal/vertical movements) that generates earthquakes. Over the last 50 years, approximately 430 earthquakes with M ≥ 5, including 36 M ≥ 6 earthquakes, have been recorded in the region. This study aims to link the ocean bottom deformations manifested through ocean bottom pressure variations with the earthquakes’ time series. To this end, we investigated the time series of the ocean bottom pressure (OBP) anomalies derived from the Gravity Recovery and Climate Experiment (GRACE) and GRACE Follow-On (GRACE-FO) satellite missions. The OBP time series comprises a decreasing trend in addition to 1.02, 1.52, 4.27, and 10.66-year periodic components, which can be explained by atmosphere, oceans, and hydrosphere (AOH) processes, the Earth’s pole movement, solar activity, and core–mantle coupling. It can be inferred from the results that the OBP anomalies time series/mass change is linked to a rising trend and periods in the earthquakes’ energy time series. Based on this preliminary work, ocean-bottom pressure variation appears to be a promising lead for further research.

Stability Assessment of Current Controller with Harmonic Compensator for LCL-Filtered Grid-Connected Inverter under Distorted Weak Grid

An assessment of the stability and performance of current controllers with harmonic compensators is presented for an inductive-capacitive-inductive (LCL)-filtered grid-connected inverter under distorted weak grid conditions. By using two typical current control schemes which are the direct current controller with the capacitor current-based active damping and integral-resonant state feedback current controller, the closed-loop system stability and current control performance are investigated in the presence of both uncertain grid impedance and distorted grid. Even though the controller stability has been investigated under weak grid in several studies, the stability assessment of the entire current control scheme, including the harmonic resonant controllers, still needs a further comprehensive investigation. The system stability is analyzed by obtaining the movement of the closed-loop poles in the discrete-time domain when the grid impedance varies. To fully study the impact of distorted weak grid condition on the LCL filters, three LCL filter parameter sets giving the resonance frequency in different frequency bands are chosen for the purpose of evaluating the system robustness and grid-injected current quality. In order to support the presented theoretical analyses, comprehensive simulation and experimental results based on 32-bit DSP TMS320F28335 to control 2 kVA grid-connected inverter are presented in terms of grid current quality and control stability in the environment of both uncertain grid impedance and distorted grid.

Rapid and accurate initial alignment of the low-cost MEMS IMU chip dedicated for tilted RTK receiver

The new global navigation satellite system real-time kinematic (RTK) receivers with tilt compensation extend the applicability of high-precision RTK positioning to previously restrictive environments since the pole is no longer required to be maintained vertically. The rapid and accurate initial alignment of the built-in low-cost inertial measurement unit (IMU) is a critical technical issue and currently remains a challenge for the tilted RTK. We address this problem by proposing a method specific to the determination of the IMU initial heading for the tilted RTK. In this approach, the IMU heading is calculated from the angle between the inertial navigation system (INS)- and RTK-indicated position increment vectors in the horizontal plane based on the fact that the INS- and RTK-indicated trajectories in the short term are similar in shape. Instead of conventional INS mechanization, the INS-indicated trajectory is determined using the gyro-derived attitude and pole length by treating the pole movement as the motion of a rigid body with a fixed point to enhance the trajectory accuracy. The experiment results indicate that the initial heading is accurately determined to 1.15° at a 98.2% confidence level within only 2–3 s when using a dollar-level IMU chip without any additional sensors, e.g., a magnetometer. The proposed algorithm satisfactorily meets the requirements of the tilted RTK application, and its accuracy and convergence speed are higher than those of the current methods reported in publications and product sheets.

Low-Power Area-Efficient LDO With Loop-Gain and Bandwidth Enhancement Using Non-Dominant Pole Movement Technique for IoT Applications

A new Low Drop-Out (LDO) voltage regulator with off-chip capacitor for low power applications is presented. The LDO takes advantage of non-dominant pole movement technique to improve loop-gain and Unity Gain Frequency (UGF). Tangible improvements were obtained while supporting a large load capacitor and low-power consumption. The proposed LDO 1) consumes low quiescent current (47.3% current efficiency (CE) at 10 μA load current bias circuit inclusive), 2) is area-efficient (no multi-gain amplifiers), and 3) enjoys a short response time in the active-mode with its adaptive bandwidth expansion and loop-gain enhancement technique, while 4) maintaining 99.94% CE in the full-load condition. A prototype chip with TSMC 180 nm CMOS technology was fabricated for detailed characterisation. The measured output voltage of the LDO was 1.65 V with 1.8 V input, consuming 11 μA quiescent current including the bias circuit current. The load regulation was 10 mV when load current changes from 30 nA to 50 mA with fall and rise time of 10ns.

Integral relations for rogue wave formations of Gardner equation

Rogue wave structures can often be described by a set of rational solutions. These can be derived for physical systems satisfying various well-known nonlinear equations. We present integral relations which characterize the Gardner rogue waves, and show that they take integer values. These could be used to identify the order of a measured rogue wave. Finally, we compare these with rogue wave forms of other nonlinear partial differential equations. Similarities and differences in integral relations among those systems are found. We study the movement of relevant poles on the complex plane as well.

Employing the dynamics of poles in the complex plane to describe properties of rogue waves: case studies using the Boussinesq and complex modified Korteweg–de Vries equations

The dynamics and properties of rogue waves of two classical evolution equations are studied in terms of trajectories of the poles of the exact solutions, by analytically continuing the spatial variable to be complex. The Boussinesq equation describes the motion of hydrodynamic waves in two opposite directions in the shallow water regime. The complex modified Korteweg–de Vries equation is relevant for wave packets in nonlinear media governed by a higher-order nonlinear Schrodinger equation, for the special case where second-order dispersion and cubic self-interaction are absent. On examining the movement of poles of the exact solutions for rogue waves, the real parts of the poles correlate well with the locations of maximum displacements in the physical space. This phenomenon holds for high precision numerically for the first-, second- and third-order rogue waves of the Boussinesq equation. A similar principle is also valid for the first- and second-order rogue waves of the complex modified Korteweg–de Vries equation. The imaginary parts of the poles can generate useful information too. For these two evolution models, a smaller imaginary part in the complex plane is associated with a larger amplitude of the rogue wave in physical space. An empirical formula is proposed which works well for the three lowest orders of rogue waves of the Boussinesq equation.

Actuator modelling for attitude control using incremental nonlinear dynamic inversion

Recently, the concept of incremental nonlinear dynamic inversion has seen an increasing adoption as an attitude control method for a variety of aircraft configurations. The reasons for this are good stability and robustness properties, moderate computation requirements and low requirements on modelling fidelity. While previous work investigated the robust stability properties of incremental nonlinear dynamic inversion, the actual closed-loop performance may degrade severely in the face of model uncertainty. We address this issue by first analysing the effects of modelling errors on the closed-loop performance by observing the movement of the system poles. Based on this, we analyse the neccessary modelling fidelity and propose simple modelling methods for the usual actuators found on small-scale electric aircraft. Finally, we analyse the actuator models using (flight) test data where possible.

Standards for physical fitness of biathletes during the period of sport skills perfectionм

The purpose – perfection of the techniques for controlling speed-strength capabilities and endurance of the rotator cuff muscles of biathletes during the period of sport skills perfection. Research methods and organization. The study involved 204 biathletes aged 15-17. We tested the speed- strength abilities and endurance of rotator cuff muscles with the Skierg Concept2 ski ergometer (USA). Research results. Significant changes in the endurance of rotator cuff muscles of biathletes occur in the age period from 15 to 16 years. The change in speed-strength abilities of female biathletes, in contrast to male biathletes, occurs against the background of an increase in the number of ski pole movements per minute. We processed the obtained data using the method of determining the boundaries of confidence intervals. Based on the data processed, we developed the standards for assessment of the speed-strength abilities and strength endurance of rotator cuff muscles of biathletes during the period of sport skills perfection with the Skierg Concept2 ski ergometer (USA). We tested applicability of the developed standards for speed-strength abilities and strength endurance of rotator cuff muscles in a one-year educational experiment. Conclusion. We proposed a methodology for testing speed-strength abilities and strength endurance of rotator cuff muscles with the Skierg Concept2 ski ergometer (USA) in the framework of our study. The developed stand- ards for assessing speed-strength abilities and strength endurance of rotator cuff muscles of biathletes during the period of sport skills perfection help to identify strong and weak points of fitness and to predict the possibility of achieving certain results by individual parameters.

External focus of attention concurrently elicits optimal performance of suprapostural pole-holding task and postural stability in children with developmental coordination disorder

The aim of this study was to determine the effects of different attentional focus conditions (external focus (EF) vs. internal focus (IF) vs. no focus (NF)) on the performance of a pole-holding task and postural stability in children with developmental coordination disorder (DCD) and typically developing children (TDC), while addressing previous study limitations. A total of 186 participants were enrolled in the analysis comprising 91 children with DCD (28 in the EF, 32 in the IF, and 31 in the NF condition) and 95 TDC (31 in the EF, 33 in the IF, and 31 in the NF condition). Participants were required to hold a pole with their hands still and parallel to the floor while focusing on pole movement (EF), focusing on hands (IF), or without focus instructions (NF), while pole movements and postural sway were recorded. Results showed that pole movements were significantly smaller during the EF condition (p < 0.05) compared with IF and NF conditions for both the DCD and TDC groups. In addition, postural sway was significantly lower during the EF condition compared with IF and NF conditions (p < 0.05). This study verified that the EF condition can not only facilitate better performance in holding a pole horizontal and immobile, but also concurrently promote greater postural stability than both IF and NF conditions for children with DCD and TDC.

Quasinormal modes of black strings in de Rham\u2013Gabadadze\u2013Tolley massive gravity

The effect of massive scalar perturbations on neutral black string in de Rham–Gabadadze–Tolley (dRGT) massive gravity is investigated through the study of the quasi-normal modes (QNMs). Due to the similarity between the equation of motion of the field in the black-string and black-hole background, similar numerical and analytical techniques can be used to explore the behaviour of the QNMs. We use the asymptotic iteration method (AIM) and the WKB method to numerically calculate the QNMs of scalar perturbation in the black string background with positive cosmological constant. High-momentum behaviour of such QNMs can be analytically approximated by the first-order WKB method with excellent accuracy. For near-extremal black string with event horizon very close to the cosmological horizon, the Pöschl–Teller technique gives accurate analytic formula for the QNMs. When massive-gravity-parameter gamma increases, we found that the scalar modes oscillate with higher frequencies and decay faster. The QNMs of black string in spacetime with negative cosmological constant are explored in all range of possible gamma using the spectral method. We found the movement of the holographic sound poles to collide and form diffusive poles as gamma changes from positive to negative values. We observe no evidence of instability of neutral black string in both positive and negative cosmological constant cases.

Effect of Different Approximation Techniques on Fractional-Order KHN Filter Design

Having an approximate realization of the fractance device is an essential part of fractional-order filter design and implementation. This encouraged researchers to introduce many approximation techniques of fractional-order elements. In this paper, the fractional-order KHN low-pass and high-pass filters are investigated based on four different approximation techniques: Continued Fraction Expansion, Matsuda, Oustaloup, and Valsa. Fractional-order filter fundamentals are reviewed then a comparison is made between the ideal and actual characteristic of the filter realized with each approximation. Moreover, stability analysis and pole movement of the filter with respect to the transfer function parameters using the exact and approximated realizations are also investigated. Different MATLAB numerical simulations, as well as SPICE circuit results, have been introduced to validate the theoretical discussions. Also, to discuss the sensitivity of the responses to component tolerances, Monte Carlo simulations are carried out and the worst cases are summarized which show good immunity to component deviations. Finally, the KHN filter is tested experimentally.

Design and implementation of quadrature bandpass sigma-delta modulator used in low-IF RF receiver * * Project supported by the National Natural Science Foundation of China (Nos. 61471245, U1201256), the Guangdong Province Foundation (No. 2014B090901031), and the Shenzhen Foundation (Nos. JCYJ20160308095019383, JSGG20150529160945187).

This paper presents the design and implementation of quadrature bandpass sigma-delta modulator. A pole movement method for transforming real sigma-delta modulator to a quadrature one is proposed by detailed study of the relationship of noise-shaping center frequency and integrator pole position in sigma-delta modulator. The proposed modulator uses sampling capacitor sharing switched capacitor integrator, and achieves a very small feedback coefficient by a series capacitor network, and those two techniques can dramatically reduce capacitor area. Quantizer output-dependent dummy capacitor load for reference voltage buffer can compensate signal-dependent noise that is caused by load variation. This paper designs a quadrature bandpass Sigma-Delta modulator for 2.4 GHz low IF receivers that achieve 69 dB SNDR at 1 MHz BW and -1 MHz IF with 48 MHz clock. The chip is fabricated with SMIC 0.18 μm CMOS technology, it achieves a total power current of 2.1 mA, and the chip area is 0.48 mm2.

Motor expertise facilitates the accuracy of state extrapolation in perception

Predicting the behavior of objects in the environment is an important requirement to overcome latencies in the sensorimotor system and realize precise actions in rapid situations. Internal forward models that were acquired during motor training might not only be used for efficiently controlling fast motor behavior but also to facilitate extrapolation performance in purely perceptual tasks. In this study, we investigated whether preceding virtual cart-pole balancing training facilitates the ability to extrapolate the virtual pole motion. Specifically, subjects had to report the expected pole orientation after an occlusion of the pole of 900ms duration. We compared a group of 10 subjects, proficient in performing the virtual cart-pole balancing task, to 10 naïve subjects without motor experience in cart-pole balancing task. Our results demonstrate that preceding motor training increases the accuracy of pole movement extrapolation, although extrapolation is not trained explicitly. Additionally, we modelled subjects’ behaviors and show that the difference in extrapolation performance can be explained by individual differences in the accuracy of internal forward models. When subjects are provided with feedback about the true orientation of the pole after the occlusion in a second phase of the experiment, both groups improve rapidly. The results indicate that the perceptual capability to extrapolate the state of the cart-pole system accurately is implicitly trained during motor learning. We discuss these results in the context of shared representations and action-perception transfer.